Home / 427,951.64-641,934.75-161,837.48

Finding the Fourth Proportional to 427,951.64, 641,934.75 and 161,837.48

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Solution

The fourth proportional to 427,951.64, 641,934.75 and 161,837.48 is: 242,758.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,951.64 : 641,934.75 = 161,837.48 : x
  2. Step 2: Convert to fraction form
    427,951.64/641,934.75 = 161,837.48/x
  3. Step 3: Cross multiply
    427,951.64x = 641,934.75 × 161,837.48
  4. Step 4: Simplify right side
    427,951.64x = 103,889,099,054.76
  5. Step 5: Solve for x
    x = 103,889,099,054.76/427,951.64
  6. Step 6: Final answer
    x = 242,758.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.